Underground conduit



I (No Model.)

W. WALTER.

UNDERGROUND, OONDUIT.

' Patented. Apr. 2, 1 889.

INVENTOR:

gwiw) WITNESSES:

ATTORNEYS UNITED STATES wrttnnu WALTER, OF jPllI LADELPHlA, PENESYLVeriIA.

- UNDERGROUND conceit SPECIFIGA'IIONforming part of Letters iatent no.4oo,s1o, dateds. rn 2, ess, 1 Applicationfilecllllarch 22,1388,SerialNo. 268,127. (Nomodeh) To all whom, it may concern:

Be it'known that 1, WILLIAM WALTER, a

citizen of the United States, residing in the In Letters Patent grantedto me April 28,

' 1885, No. 316,700, and July 28, 1885, No.

- designates bine' all the desired 323,241 respectively, are shown,described, and claimed underground conduits for electric wires, cables,pipes, 850.; and the object of the present inv ention is to produce anunderground conduit which will make provision for the above, and alsofor an underground railway, combining the features of the .patents withthe railway system.

A further object of the invention is to comfeatures in a conduit of thecharacter named, whereby each can perform its function in a perfect andthorough manner, and which will permit ready access to all the parts ofthe conduit for the purpose of repair, inspection, and the like.

To attain these objects, my invention consists of the combination ofparts as hereinafter set forth and claimed.

- In the accompanying drawing, which forms a part of this specification,the figure isa view, partly in section and partly in perspective, of anunderground conduit embodying my invention. j- 1 Referring to thedrawing, the numeral 1 the trench or excavation, of suitableproportions'for the desired purpose. f

2 designates the floor or base of the trench, having passage-ways orgutters 3 at each side.

The frame-work of sections each composedpf main uprights with perforatedplates secured thereto, side and curved central cross-bars,'shortuprights, and -top curved or segmental bars. The standards or uprights 4project upward from the base, .and at their upper ends are connected bythe side pieces, 5, and curved central piece, 6. The curved or segmentalbar 7 is supported on the are plates 11,

heating or steam pipes, sewer-.

the conduit-"consists of side pieces and center piece by means of shortpieces or uprights 8 of varying heights, the whole forming what may betermed a truss.

The standards are arrangedt-o form three spans or arches-a wide centraland two side arches-andthc standards are placed at suitable distancesapart throughout the length of the conduit. Secured on the standards inthe side arches are plates 9, having openings or perforations 10 thereinto allow the passage of electric wires, and opposite to the plates 9having opens 12 therein to allow pipes to pass therethrough to be usedfor gas, air, steam, hot air, and like purposes.

Floorings 13 are supported in the side arches by the standards to permitaccess to the wires and pipes for purpose of inspection or repairs, andpipes may alsorest on the said steam,'hot air,

floorings to be used for gas, air, or like purpose.

On the base or floor of the trench, in the center thereof, is laid atraclgl l, such as are used to run carson, and in thecenter of the trackis situated the pulley 15, over which the cable passes, of well-knownconstruction.

16 designates sewer or drain pipes placed, preferably, to one side ofthe passage-ways or gutters, and being connected therewith by means ofpipes 17, and also connected with the street and doors supported in theside arches by means of pipes .18, whereby the sewer drains the streetas well as the gutters and doors in the underground conduit.

, To permit access to the sewer-pipe from the passage-ways for thepurpose of repairing the sewer, I provide man-holes; '19 at intervalsalong the length .of-the passage-Ways.

' 2O designates a vent-ilating fan carried on ,a'shaftjournaled in thecurved central piece,

6, of the frame-work, and having a pulley pulleys orother means. v

The street-surface 21,"which may be composed of concrete or othersuitable material, is supported upona roofing of the truss, whichroofing may be of properly-prepared timbers supported on the bars? orthe surface material may be directly supported by the said bars '7. Inthe said street surface and on the bars-7 are timbers on which thetracks 22 are laid, and the cable 23 thereunder passing [aroundwhichpasses a band 'driven by cablestairways from the sidewalk to theunderground conduit. These underground pas.-

- sages will be provided at intervals along the line with stations orWaiting-rooms at each of such. passages.

Supported by the truss of the frame-work are pipes 27, to be used forother suitable purposes.

From the foregoing description and drawing it will be seen that Iprovide an underground conduit which combines all the desired featuresin a perfect and simple manner, and which can be constructed at a'costcomparatively low. u

Having thus described my invention, what I claim as new, and desiretosecure by Letters Patent, is-

1. In an underground conduit, a frame consistingof sections, eachsection having uprights with side and central connecting-bars,

gas, steam; air, or

and top segmental bars sustained on said side and central bars by shortuprights, said frame being adapted to sustain on said top segmental barsthe ground surface, and on its uprights suitable pipes, substantially asdescribed. 2. An underground conduit consisting of sections havinguprights and cross-bars, as described, the flooring 13, connecting saidsections, a base with side gutters, sewers under said side gutters, andseparate pipes leading from the street-surface and side gutters to saidsewers, substantially as and for the purpose set forth. I v

3. In an underground conduit, the combination of sections having topcurved or segmental bars, 7, and short uprights 8, support ingsaid bars,timbers resting on said bars and having the tracks 22 secured thereto,rollers 24-, journaled in uprights 8, and the cable 23, substantially asand for the purpose set forth.

I WILLIAM WALTER.

Witnesses:

JOHN A. Winnnnsnnm, WM. N. Moonn.

